2012 Olympics - Home to German Bombs

Unexploded World War II bombs may be buried under the east London 2012 Olympic Games site, BBC London has learned.More than 200 of the 1,500 bombs dropped in east London failed to detonate, said a report for the London Development Agency (LDA).

It classed some of the 500-acre site as "high risk" and experts have begun scanning the area for ordnance.

The cost of the work has been factored into the site clean-up, said the LDA.

At the peak of the Blitz thousands of bombs were dropped on London by the German Luftwaffe and some failed to explode.

The only way you're going to get this dealt with is with a real pressure point like the Olympics Ken Livingstone

A civil defence map used in the report, by independent site investigation firm Zetica, shows where bombs fell over east London.